''' Resources (sub) package, used to connect URLs to views '''

from pyramid.security import Allow, Everyone, DENY_ALL

from .account import RegistrationResource


class RootResource:
    ''' The root resource for the application

    :param pyramid.request.Request request: the current request object
    '''
    
    nav_active = 'welcome'

    def __init__(self, request):
        ''' Create the root resource
        
        :param pyramid.request.Request request: the current request object
        '''
        self.__name__ = None
        self.__parent__ = None
        self.request = request

    def __acl__(self):
        ''' access controll list for the resource '''
        return [(Allow, Everyone, 'view'), DENY_ALL]
    
    def __getitem__(self, key):
        ''' retruns a child resource
        
        :param str key: name of the child resource
        :returns: child resource
        :raises: KeyError if child resource is not found
        '''
        map = {
            'register': RegistrationResource
            }
        child_class = map[key]
        return child_class(name=key, parent=self)


def includeme(config):
    '''
    Initialize the resources for traversal in a Pyramid app.

    Activate this setup using ``config.include('ordr2.resources')``.
    '''
    config.set_root_factory(RootResource)